AS24635 — SYNTAX_SYSTEMS-AS

AS24635 announces 6 IPv4 prefixes covering 64,512 addresses and 0 IPv6 prefixes.

About this network

The AS handle SYNTAXSYSTEMS-AS is held by Syntax Service GmbH.

What it's used for

• The address space carries the netname Syntax across all six announced IPv4 prefixes, indicating a single corporate entity.
• The network announces 64,512 IPv4 addresses across 6 prefixes while maintaining only 3 observed neighbours, a ratio that suggests an internal corporate estate or business network rather than a transit provider.

Notable

• All registrants for the announced prefixes are listed as unknown, though the netname Syntax consistently aligns with the registry holder Syntax Service GmbH.
• The address inventory consists entirely of IPv4 space within the 153.95.0.0/17 block, subdivided into six distinct prefixes ranging from /17 to /22.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 153.95.0.0/17
• 153.95.128.0/18
• 153.95.192.0/19
• 153.95.228.0/22
• 153.95.232.0/21
• 153.95.240.0/20

Upstream networks

• AS21473 PFALZKOM GmbH
• AS174 Cogent Communications, LLC
• AS702 Verizon Business

Adjacent networks

• AS21473 PFALZKOM GmbH
• AS174 Cogent Communications, LLC
• AS702 Verizon Business

Routing security

• RPKI: 0 valid, 0 invalid and 1 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 21 route objects.
• Listed in as-sets: AS-BT-DE, AS-MANET, AS-VIAG, AS-VIAG, AS198949:AS-SD, AS3320:AS-DTAG, AS3320:AS-DTAG-V6.